Domestic scientific and technological level and de

Domestic scientific and technological level and development trend of plastic diaphragm pump

as a new type of diaphragm pump, plastic diaphragm pump is more and more widely used. It has its own unique characteristics. It uses compressed air as the power source, and can pump and absorb all kinds of corrosive liquids, liquids with particles, high viscosity, volatile, flammable and highly toxic liquids. Plastic diaphragm pump can not only pump flowing liquid, but also transport some difficult flowing media. It has the advantages of self-priming pump, submersible pump without shear test, shield pump, mud pump and impurity pump

the domestic scientific and technological level and development trend of plastic diaphragm pump have a good permeability potential to ultraviolet radiation

as a new type of diaphragm pump, plastic diaphragm pump is more and more widely used. It has its own unique characteristics. It uses compressed air as the power source, and can pump and absorb all kinds of corrosive liquids, liquids with particles, high viscosity, volatile, flammable and highly toxic liquids

plastic diaphragm pump is mainly composed of transmission part and diaphragm cylinder head. The transmission part is a driving mechanism that drives the diaphragm back to agitate. Its transmission forms include mechanical transmission, hydraulic transmission and pneumatic transmission. Among them, hydraulic transmission is widely used. The working part of plastic diaphragm pump is mainly composed of crank connecting rod mechanism, plunger, hydraulic cylinder, diaphragm, pump body, suction valve and discharge valve, among which the driving mechanism composed of crank connecting rod, plunger and hydraulic cylinder is very similar to reciprocating piston pump. Plastic diaphragm pump can not only pump flowing liquid, but also transport some medium that is not easy to flow. It has the advantages of self-priming pump, submersible pump, shielded pump, mud pump, impurity pump and other conveying machinery

because plastic diaphragm pumps have the above characteristics, diaphragm pumps in the world have been gradually invading the market of other pumps as petroleum based degradable materials since their birth, and occupy a part of them. For example, diaphragm pumps have occupied an absolutely dominant position in the paint and ceramic industries. When the plastic diaphragm pump works, the crank connecting rod mechanism, driven by the motor, drives the plunger to move back and forth. The movement of the plunger is transmitted to the diaphragm through the working liquid in the hydraulic cylinder, so that the diaphragm can tell you what their main difference is. The cylinder head is mainly separated from the working liquid by a diaphragm. When the diaphragm moves to the side of the transmission mechanism, the pump cylinder sucks in liquid for negative pressure when it works, When the diaphragm moves to the other side, the liquid is discharged. The plastic diaphragm pump has good sealing performance and can easily achieve leak free operation. It can be used to transport corrosive liquids such as acid, alkali, salt and high viscosity liquids

a diaphragm is installed in each of the two symmetrical working chambers of the plastic diaphragm pump, which is connected into a whole by the central connecting rod. Compressed air enters the air distribution valve from the air inlet of the pump, and is introduced into one chamber through the valve distribution mechanism to drive the diaphragm in the chamber to move, while the gas in the other chamber is discharged. Once the end of the stroke is reached, the valve distribution mechanism automatically introduces compressed air into another working chamber, pushing the diaphragm to move in the opposite direction, so that the two diaphragms move back and forth continuously and synchronously. The compressed air of the plastic diaphragm pump enters the air distribution valve from to make the diaphragm move to the right, and the suction of the chamber makes the medium flow in from the inlet, pushing the ball valve into the chamber, and the ball valve is locked due to suction; The medium in the chamber is squeezed, and the ball valve is pushed open to flow out from the outlet. At the same time, the ball valve is locked to prevent flow. In this way, the medium is continuously sucked in from the inlet and discharged from the outlet

in domestic high-risk industries such as chemical industry, the use of high-quality mechanical equipment is very critical, especially for plastic diaphragm pump equipment that directly contacts with some highly corrosive liquids, quality is particularly important. However, when these high-risk industries choose this equipment, they first have an idea, that is, to import products first, because imported products have planted a shadow in the hearts of the people, People all think that only imported products are of good quality and the best. In fact, such an idea not only affects the development of China, but also promotes the development of other countries, which is very undesirable

nowadays, some manufacturing technologies in China have far surpassed those in other developed countries, and many domestic products have been exported to other countries. Since it is such a foil of high-quality technology, why do we import products first when choosing these equipment? Maybe for Chinese people, China's technology is still inferior to that of other countries. Although this phenomenon did exist before, it does not mean that it will exist forever. I believe people have also heard some news that the inflow of Chinese products in other countries has caused great danger to their development. The main reason is that the products produced in China are not only very cheap in price, but also guaranteed in quality. In that case, choosing equipment such as plastic diaphragm pump can completely abandon the original idea and choose domestic equipment